Summit headers and "half dummy" zoomie pipes

Had a buddy in high school with a Corvair and he wanted side pipes. So he bought some flex pipe and ran it from the rear engine up the rocker of the car with a turnout right behind the front wheel just like you want to do. Nearly killed us from exhaust fumes. Cops made him take them off. LOL. This is a bad idea on so many levels. People will appreciate your car more with tasteful modifications rather than goofball ideas.....